Radiator-coupling.



F. .l. SINGER. v

RADIATOR COUPLING.

APPLICATION FILED umze. 191s.

Patented J nne 19, 1917.

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UNITED STATES PATENT OFFICE.

FRANK J'. SINGER, OF DETROIT, 1VIICI-IIGA1\T, ASSIGNOR TO AMERICAN PBESSWELD' RADIATOR CORPORATION, OF DETROIT, MICHIGAN, A CORPORATION OF DELAWARE.

RADIATOR-COUPLING.

To all whom it may concern:

Be it known that I, FRANK J. SINGER, a citizen of the United States, residing at Detroit, in the county'of Wayne and State of Michigan, have invented a new and useful Radiator-Coupling, of which the following is a specification.

Joints between adjacent sections of pressed sheet metal radiators as heretofore formed have usually been of two forms: either an interlocking seam has been used or a fused joint. riety has proven, unsuited to the varying conditions of temperature and moisture, and is of high initial expense; and the fused joints have failed because a complete and uniform fusion of the metal was not uniformly secured throughout the seam.

The present invention relates to a radiator coupling in which a perfect fusion. is

easily and quickly secured-between the metal of the adjacent radiator section and the corresponding member of the coupling, and wherein the coupling members, when there after connected by a suitable nipple, may be brought into close relation to each other to form a tight and-neat joint.

One embodiment of the invention is shown in the drawings, Figure 1 being a fragmentary horizontal section through the radiator at the level of the coupling, Fig. 2 a fragmentary end view looking from the right hand side of Fig. 1, Fig. 3 a fragmentary vertical. section showing the manner of attaching the plug receiving element, and Fig. 4 a longitudinal section of a pressed sheet metal connecting nipple which it is preferred to use.

The thin pressed sheet metal half sections 1 of the radiator, of any approved shape, are provided with out-turned annular flanges 2, and are connected together at 3 in any desired manner, preferably by fusion.

Received within each of the flanges 2 is an inte-riorly threaded coupling member a or 5, as the case may be, that projects into the section and is provided with the annular strengthening flange 6 that is faced at 8 and has formed therein an annular groove 9. The latter is removed inwardly from the outer circumferential surface of the flange 6 a distance substantially equal to the thickness of the flange 2 to form an annular flange 10 concentric with the latter, and is of a depth sufficient to make, when fused,

Specification of Letters Patent.

Application filed January 26, 1916.

The first mentioned vathreaded.

Patented June 19, 1917.

Serial No. 74,294.

a welded joint of the required width. As a result, heat from a blow pipe or an electric are, when applied to the parts, fuses both flanges at the same time, whereas, were the groove 9 omitted, fusion of the flange 2 would precede that of the adjoining portion of the coupling member, and by the time the latter had reached a fusing temperature, the former would, in many instan1c-es,.have become partly burned or weakene It is preferred to taper the inwardly projecting end of the coupling member as shown at 11, wherebyany liquid of condensation is caused to cling to and flow down the side of the section rather than drip, thus avoiding undesirable noise.

The material may be removed at 12 along the inner edge of the face 8 to allow easy entrance of the nipple 13. The latter is preferably formed of pressed metal and has the short lugs 141 pressed inwardly therefrom, preferably at points diametrically opposite each other, previous to the operation whereby the usual right and left hand threads are. formed. These lugs serve a double purpose in that they may 'be used not only to apply a wrench ortool for screwing the sections together but also for the purpose of holding the nipple in proper rotative relation to the dies by which it is Since the lugs are located in the position shown, it follows that they do not interfere with the formation of a tight joint.

When the nipples are fully screwed up, the faces 8 engage with each other and the edges of the welded seams are in close relation to one another, which both tends to preventleakage and insures a neat appearance.

The end section of the radiator may be formed as'shown in Fig. 3, from which it will be seen that the threaded coupling or reinforcing member 16 for receiving the plug 17 is provided with the annular rib or flange portion 18 of thickness substan tially equal to that of the adjacent sheet metal. Simultaneous fusion of the parts therefore takes place as described with reference to the members 4:-

It is clear that many changes may be made in the details ofconstruction without departing from the spirit of my invention; also that sections of containers other than radiators may be joined in the aame way.

I do not, therefore, wish to be limited otherwise than as indicated by the subjoined claims.

I claim l. A container comprising a plu 'ality of sections each formed of thin sheet metal and each having one of its walls formed with an outwardly extending tubular flange, each section having an internally threaded coupling member of greater thickness than the flange secured to the latter by welding, said coupling members each including a flange or rib concentric with, adjacent to and of substantially the same thickness as the first mentioned flange whereby a proper fusion of the metal of the two flanges may be obtained, a nipple threaded into the coupling members, the latter being drawn toward each other by the nipple until pressure from one is transmitted to the other over the outer faces thereof;

2. A radiator comprising a sheet metal section having one of its walls formed with an outwardly extending annular flange, an internally threaded coupling member secured to said flange, said coupling member extending out into the section beyond the inner face thereof and beingtapered,whereby dripping of water of condensation is avoided.

3. A radiator comprising a sheet metal section having one of its walls form-ed with an outwardly extending annular flange, an internally threaded member secured to said flange, an externally threaded member screwed into said internally threaded memher, said internally threaded member extending out into the section beyond the inner face thereof and being tapered, whereby dripping of water of condensation is avoided.

a. A radiator comprising a section having an opening in one of its walls, an internally threaded member rigidly secured in said opening, an externally threaded member screwed into said internally threaded memher, said internally threaded member extending out into the section beyond the inner face thereof and being tapered, whereby dripping of water of condensation is avoided.

5. A radiator comprising a sheet metal section having one of its walls formed with an outwardly extending annular flange, an internally threaded coupling member welded to said flange, said coupling member extending out into the section beyond the inner face thereof and being tapered, whereby dripping of water of condensation is avoided.

(5. A sectional container comprising a sheet metal section having an opening therein, an internally threaded coupling member secured to the wall. of the opening, a nipple threaded into the coupling member, said nipple having short lugs pressed inwardly from an intermediate point in its length and being of substantially the same thickness at the lugs as at points adjacent thereto, whereby force may be applied to screw the nipple into the coupling member.

7. A sectional container comprising a plurality of sheetv metal sections having alined openings formed therein, internally threaded coupling members secured, respectively, to the walls of the openings, the threads 011 one of the members being right handed and those on the other being left handed, and a seamless nipple having right and left hand threads that engage, respectively, with the corresponding threads on the coupling members, said nipple having short lugs pressed inwardly therefrom at an intern'lediate point in its length prior to the formation of the threads thereon, whereby force may be applied to screw the nipple into the coupling members.

8. A radiator comprising a sheet metal. section having an opening therein, an internally threaded coupling member secured to the wall of the opening, a nipple threaded into the coupling member, said nipple having a lug extending inwardly from its inner surface and being of substantially the same thickness at the lug as at points ad jacent there-to, whereby force may be applied to screw the nipple into the couplmg member.

In testimony whereof Isign this specification.

FRANK J. SINGER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

